diff --git a/backend/package.json b/backend/package.json
index 02328230f..16b0cdf22 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -12,7 +12,7 @@
     "lint": "eslint . --ext .js,.ts"
   },
   "dependencies": {
-    "apollo-datasource-rest": "^0.14.0",
+    "axios": "^0.21.1",
     "express": "^4.17.1",
     "express-graphql": "^0.12.0",
     "graphql": "^15.5.1",
diff --git a/backend/src/apis/loginAPI.ts b/backend/src/apis/loginAPI.ts
new file mode 100644
index 000000000..7370ee50c
--- /dev/null
+++ b/backend/src/apis/loginAPI.ts
@@ -0,0 +1,163 @@
+import axios from 'axios'
+import CONFIG from '../config'
+// eslint-disable-next-line no-unused-vars
+import regeneratorRuntime from 'regenerator-runtime'
+
+// control email-text sended with email verification code
+const EMAIL_TYPE = {
+  DEFAULT: 2, // if user has registered directly
+  ADMIN: 5, // if user was registered by an admin
+}
+
+const apiGet = async (url: string) => {
+  try {
+    const result = await axios.get(url)
+    if (result.status !== 200) {
+      throw new Error('HTTP Status Error ' + result.status)
+    }
+    if (!['success', 'warning'].includes(result.data.state)) {
+      throw new Error(result.data.msg)
+    }
+    return { success: true, result }
+  } catch (error) {
+    return { success: false, result: error }
+  }
+}
+
+const apiPost = async (url: string, payload: string) => {
+  try {
+    const result = await axios.post(url, payload)
+    if (result.status !== 200) {
+      throw new Error('HTTP Status Error ' + result.status)
+    }
+    if (result.data.state === 'warning') {
+      return { success: true, result: result.error }
+    }
+    if (result.data.state !== 'success') {
+      throw new Error(result.data.msg)
+    }
+    return { success: true, result }
+  } catch (error) {
+    return { success: false, result: error }
+  }
+}
+
+const loginAPI = {
+  login: async (email: string, password: string): Promise<any> => {
+    const payload: any = {
+      email,
+      password,
+    }
+    return apiPost(CONFIG.LOGIN_API_URL + 'unsecureLogin', payload)
+  },
+  logout: async (sessionId: number): Promise<any> => {
+    const payload: any = { session_id: sessionId }
+    return apiPost(CONFIG.LOGIN_API_URL + 'logout', payload)
+  },
+  create: async (
+    email: string,
+    firstName: string,
+    lastName: string,
+    password: string,
+  ): Promise<any> => {
+    const payload: any = {
+      email,
+      first_name: firstName,
+      last_name: lastName,
+      password,
+      emailType: EMAIL_TYPE.DEFAULT,
+      login_after_register: true,
+    }
+    return apiPost(CONFIG.LOGIN_API_URL + 'createUser', payload)
+  },
+  sendEmail: async (
+    email: string,
+    email_text = 7,
+    email_verification_code_type = 'resetPassword',
+  ): Promise<any> => {
+    const payload: any = {
+      email,
+      email_text,
+      email_verification_code_type,
+    }
+    return apiPost(CONFIG.LOGIN_API_URL + 'sendEmail', payload)
+  },
+  loginViaEmailVerificationCode: async (optin: number): Promise<any> => {
+    return apiGet(
+      CONFIG.LOGIN_API_URL + 'loginViaEmailVerificationCode?emailVerificationCode=' + optin,
+    )
+  },
+  getUserInfos: async (sessionId: number, email: string): Promise<any> => {
+    const payload: any = {
+      session_id: sessionId,
+      email: email,
+      ask: ['user.first_name', 'user.last_name'],
+    }
+    return apiPost(CONFIG.LOGIN_API_URL + 'getUserInfos', payload)
+  },
+  updateUserInfos: async (sessionId: number, email: string, data: any): Promise<any> => {
+    const payload: any = {
+      session_id: sessionId,
+      email,
+      update: {
+        'User.first_name': data.firstName,
+        'User.last_name': data.lastName,
+        'User.description': data.description,
+      },
+    }
+    return apiPost(CONFIG.LOGIN_API_URL + 'updateUserInfos', payload)
+  },
+  changePassword: async (sessionId: number, email: string, password: string): Promise<any> => {
+    const payload: any = {
+      session_id: sessionId,
+      email,
+      password,
+    }
+    return apiPost(CONFIG.LOGIN_API_URL + 'resetPassword', payload)
+  },
+  changePasswordProfile: async (
+    sessionId: number,
+    email: string,
+    password: string,
+    passwordNew: string,
+  ): Promise<any> => {
+    const payload: any = {
+      session_id: sessionId,
+      email,
+      update: {
+        'User.password_old': password,
+        'User.password': passwordNew,
+      },
+    }
+    return apiPost(CONFIG.LOGIN_API_URL + 'updateUserInfos', payload)
+  },
+  changeUsernameProfile: async (
+    sessionId: number,
+    email: string,
+    username: string,
+  ): Promise<any> => {
+    const payload: any = {
+      session_id: sessionId,
+      email,
+      update: {
+        'User.username': username,
+      },
+    }
+    return apiPost(CONFIG.LOGIN_API_URL + 'updateUserInfos', payload)
+  },
+  updateLanguage: async (sessionId: number, email: string, language: string): Promise<any> => {
+    const payload: any = {
+      session_id: sessionId,
+      email,
+      update: {
+        'User.language': language,
+      },
+    }
+    return apiPost(CONFIG.LOGIN_API_URL + 'updateUserInfos', payload)
+  },
+  checkUsername: async (username: string, groupId = 1): Promise<any> => {
+    return apiGet(CONFIG.LOGIN_API_URL + `checkUsername?username=${username}&group_id=${groupId}`)
+  },
+}
+
+export default loginAPI
diff --git a/backend/src/graphql/datasources/loginServer.ts b/backend/src/graphql/datasources/loginServer.ts
deleted file mode 100644
index ff802bce8..000000000
--- a/backend/src/graphql/datasources/loginServer.ts
+++ /dev/null
@@ -1,23 +0,0 @@
-import { RESTDataSource } from 'apollo-datasource-rest'
-import CONFIG from '../../config'
-import { Group } from '../models/Group'
-
-export class LoginServerAPI extends RESTDataSource {
-  constructor() {
-    super()
-    this.baseURL = CONFIG.LOGIN_API_URL
-  }
-
-  async getAllGroupAliases(): Promise<Group[]> {
-    return new Promise(() => {
-      const response = await this.post('networkInfos', { ask: ['groups'] })
-      const groups: Group[] = []
-      response.data.forEach((element: string) => {
-        const group = new Group()
-        group.alias = element
-        groups.push(group)
-      })(groups)
-      return groups
-    })
-  }
-}